Electric switch.



No. 818,226. PATE'NTED APR, 17, 1906- L. R. BROWN & F. H. WENTWORTH.

ELECTRIC SWITCH. APPLICATION FILED MAY5, 1905.

2 SHEETS-SHEET 1.

f n s a a H m w M 0m 4 m MM n W r 61/51 w 5 @00 .wiiji J 1 1 4 wWITNESSES:

. PATENTED APR. 17, 1906. L. RBROWN & F. H. WBNTWORTH.

ELECTRIC SWITCH APPLICATION FILED MAY 5, 1905.-

2 SHEETS-SHEBT 2.

INVE/VTORS WITNESSES.

A TTOR/V UNITED srawnnrr orrron.

nizwisn. snows, oF sonrn'omnenlrinw inasnaealnn men n. WENT- WORTH;OF'NEW YORK.. N,;Y.; SAID wnnrwoitrn 'ASSIGNOR or-rninrr it'inta yconcern.- Be it known t we, LEWIS resident 'offSouth breaking-GOIlliflOtrand leavin for providing a any desired kind of electriccircuit and for opentering a stationary crating any desired kind of anelectrical inby mcansof-a wire 35 is shown as connected": strurnent,with the positivewire of the three-wire sys Further objects of theinvention will aptem. It will be seen that inorder to conduct tion.

v i desCribedgA three-wire system 1Qj. is'connectedinany ordinary mannerwith-jan elec- Essex and State {WENTWORTI-I', a resident of the city ofNew 'ork, borough of Manhattan, in the county and State ofN-ew States,have Electric Switch, ofwhichthe followingis a ,full, clear,

trolled'in any desired manner-as, for ex making and breaking any desiredkind of an electric circuit.

"condition when not .-ence indicate corresponding parts in all the"figures.

. I a system of connections which ferred iorm of our invention therein,and Fig.

orInHUNDREDrHs-To SAID BROWN.

-- TELEcrmc' swircii.

- Specificati'onof Letters latent. Application filed May 51 1965. SerialNo. 258,943,

Patented April 17, 19cc.

R; BROWN, a Orange, in the county of of-;New Jersey, and FRED H.

. light 1 1 is shown as connected a neutr'al wire by means of a wire .12and by a connection 13 with-a mercury-cu 'cury,-.cu.p is also anelectromagnet 16, which has a connection.

York, citizens of the United invented a' new and Improved oted upon anelement 20, constituting a part of a frame which will be referred tolater, the frame being connected by a wire 21 with the wire 12. Thislever is adapted toengage with the contact-piece 18. Upon the same frameis pivoted another lever 22, which is adapted to engage withacontactiece 23, connected by a wire 24 with andjexact description.

,Our invention relates: to a switch'to be op erated-by an electriccurrent and to be conample, by atime-clockfor-the purpose oi The p'ncipal objects of our invention are making and the various electricalconnections. of the evice in such use that no current will flow throughthem; further, to provide means which can be operated by the timeclockor similar device for operating .both the. making and breaking parts ofthe" device and switch which can be used in provide means forefiectively ed at the opposite side by a wire 26, through a binding-post27, with cured to itsown armature 29. This 28 normally supports acontact-making element 30, Which constitutes the armatureof the magnet16 and which is providedwith a bar 31, adapted to enter the mercuryscup14. Secured to the element'30 is a rodg32, bent upwardly and providedwith a projection-3 3",

lithe rod 31 must be in the rnercury c current is then condu ted frompear in the course of the subjo ined descrip- Reference is to behad tothe accompanying drawings, formin apart of this specifig cation, inwhich simi ar characters of refer 13, 11, and 12 back tot I maincircuit. In order to provide sarv motions to control the turnin currentonto and ofi from this ci'rc two 1evers19 and 2-2 are manipulated in anydesired manner. Thismanipulation can occur by hand, by switches, byelectrical conshowing be used withour invention.- Fig. 2is -;aii vationshowing the inside of ageceptale-aiid a pre F'gure 1 is a diagrammaticview 3 is a'sectional view of certain details to be desystem, and thelike. We have illustrated a scribed. j i p time-clock system having ashaft36, wh ch Referring first to Fig. 1, the general plan of iscontrolledby any desired mechanism, so as to rotate regularly. The shaftis provided with a dial 37, indicating the hours and minutes, ifdesired. Upon the shaft, andprefdesiredkind of l erably above the dial,are located two disks l 38 and 39, of insulating material. Thesetwodisks are capable of being turned about the shaft 36 and fixed They areprovided with notches 40 and -11.

the electrical connections illustrated will be tric light 11 or with anyother an electrical instrument which it maybe desired to connect.with'anddisconnect from 1 the three-wire system. It will be understood1 that the switch can beapplied to any kind of A an electric circuit andthat. we threewme system Is illustrated for-,convenience. The.

' 14. This" mer-. connected y'a wire 15 17 to a contact-piece 18. Alever 19 is piva secon electromagnet 25. This electromagnet isconnectnections from distant points, by a time-clock in any desiredposition.

a rod 28,'whih is se-f m yup 3 FW 43.. Then contact made'between thelever; 191aiidthe,contact piece -caively, for receiving projections 42and upon-the levers'22and 19. .These notches are providedwith, sharpshoulders on one side and 'with inclined surfaces'on the .;.oi-her,

so that 23 13116: disks rotate with the shaft- 36 1 after being; securedin anydesiredposition the circumferences of the disks will normally holdthe two projections 42 and 43 in the position Ishownfso that the levers19 and 22 will remain out of contactwith the contactpieces 18 an'd23;but when the clock-shaft rotates sufficiently to bring the notchesopposite the projections on the ,bars the latter I will beallowed tomoveon accountof any de in the directionof the arrow, the projectionsired motivepower as, for example, weights 44 up onthe outer ends of thetwo levers. This Wlll permit the levers to make contact vwith thecontact-pieces 18 and 23. The ef fect of this will now. be described.

Supposing the shaft 36 to be rotated slightly 42Will ent'erithe notch 40on account of the action of the weight 44, and the end of the lever willengage the contact-piece 23. This completesa circuit through theelements 3 5,

.34, 32,- 30, 28,26, 25,24, 23,22, and 21 back to the wire 12 and-theneutral wire of the system ,and consequently a current will flpw throughthese connections and energize the magnet. 25, so as to retract thearmature thereof and remove the bar aom the bot-v '31 andtl1e-coin.1e'ctio11' 32. enter. the mercuryecup 14, and a new circuitwill be set up from the positive of the main 'circuitthroughtheelements35, 34, 32, 31,

tom of the armature 30. This will permit the armatureto drop, takingwith it the bar ":14, :13, 11-, and 12 to'the neutral, which will lightthe lamp. Upon further rotation of the shaft 36 the rear slantingsurface of the notch 40 will force the projection 42 out to thec'ircumference' of the disk 33 and break the con tact ,atthe other entiof the lever 22, sothat no more currentwill flow through the circuitconnected therewith. This relieves the electrcmagnet of all tensionexcept from that of a spring [45 therein. (Shown in Fig. 2.)

This .spring','2therefore, will be permitted to) force the armatureoutwardly'agam until the part 28 engages the armature ;,but by thistime'this armature is in its lowermost posi tion, and'consequently therod 28 will engage With-an insulation 46 upon the armature, and nocurrent will be conducted through it even if the" contact-at thecontact-piece 23 is made. The'parts will remain in this-position, nocurrcnt'passingthrough anypart of the line ex- ,cept-jthat-necessary'forsupplying the lamp disk 39 has rotated enough to 11,-until the I bringthe notch 41 opposite -the pro ection 8 111 the same manner as thatdescribedabove. Thifs:.ivill permi' a currentto j t ow 'from themercurycup 14, throughthe wire 15-, magnet 16,. and

Wire 17 to the contact-piece 18, lever 19, and

by the wire 21 back to the wire 12, 'and therefore forms a shunt fromthe circuit feeding the lamp.- This energizes ther'nagnet 16 and drawsthe armature 30 up into the position shown in Fig. 1 and breaks thecircuit to .the lamp. The spring acting on the armature 29 ,forces thebar 28 into position to hold the armature 30 in elevated position, andas soon essary in making theidevice. Referring now 'to Figs. 2 completedescription of certain parts ofthe apparatus will be given. Fig. 2 showsa receptacle 47, having a cover48, adapted to be secured thereto bymeans of thumb-bolts 49.

The parts 14, 16, 25, 34, and 20 (the latter being the frame of theclock) are mounted upon an i'nsulating-plate5O at the back of thereceptacle, and most of the electrical con- Thebar 31 will nections aremade by-means of wires insi 'lated from each other and located behindthe insulating-plate. The mercury-cups 14 and .34 are preferablyprovidedwith slots 51, by which they can be adjustably held'in'positionby screws 52, which may also act as binding-screws.

with an internal shell 53, having a shoulder 54 for engaging the springto normally wardly. The rod 31-is' preferably screwed into the armature30 and the insulation46 securedupon the outsideof it next to thearmature. a shoulder for receiving the bar 28. The conductor 32 ispreferably connected to the the armature. A fuse 56 is-repr'eslented inthe conductor 24.. j

The several parts of the time-clock need not be described; but thedrawings show a pointer 57, which can be employed in setting thedial. jThe'disks 38-and'39 are provided with marks 58, adapted to register withthe pointer whenthe projections on the levers are inthe notches 40 and41.

' Having thus described our invention, we claim as new and desire to'secureby Letters Patent-q frame 20; This current'is then conducted.

as the disk 39 has rotated a slight distance farther the contact withthe lever 19 is and 3, a more hold it in position to force the armatureout-Y the dial 37 and 'forregistering the time on- 1. An electric switchcomprising a contactmaking element, means for supporting sa d elementininoperative pos tion, an electric on.

, serious complications of construction are nec The magnet 25 isprovided j r Io" The bottom of. the armature forms I bottom or someother convenient portion of v .ct'ed with the electric cir- 1'n saidelement to cause it to openiing said ifirst men- 'uit when t hasreleased aid means to another member of on w I I iositionsand insulatedthere- :bar ISiIl contact W th thee-ong are vit *it todrop into-"contactwith said device, electrical connections from said hart-o one memher ofthe main circuit, and electrical connedtions from said means ar-z'inelevated .positionout of trical connection with the bar when holding itin elevated posit-ion, said contactanaking bar being provided withinsulation for preventing electric connection between it and the meansfor releasing it when the bar is released.

4. The combination with a main circuit, of 40 an electric switchcomprising a verticall movable bar, ainercury-cup located below the bar,abar for holding the first-mentioned bar in elevated position, means forretracting said second bar and permitting the firstmentioned bar to dropint-o the mercury-cup,

electrical connections from the first-mentioned bar to one member of themain circuit, and electrical connections from the mer cury-cup to theother member of the main 5o circuit. 5. The combination with a maincircuit, of an electric switch comprising a vertically movable bar, amercury-cup located below the bar, a bar for holding the first-mentioned5 5 bar in elevated posi 'on, means for retracting said second bar andpermitting the first-mentioned bar to drop into the mercury-cup,electrical connections fromthe first -mention'ed bar to one member ofthe main cir 6o cuit, electrical connections from the niercur vcup tothe-other member oi the main circuit, said lirst-named bar beingprovided with insulation for preventing the passage of a current betweenit and the second bar when the first bar is in the meri-urvwup, andmeans electric circuit a and means onjt act-making device,

n t-ta and'electrica-l connecsaid meansbeing in, elec-, 't-h-the barwhen holding.

or bi at-iori'with amain circuit, of r swi ell comprising aeontact-mak ia onta'ct de vice',-'means,tor normally,

nam d bar in elevated position said contactmaking device; mercury-cup,and meansior connecting the asi ng sai'dbar and permitting ,tojthefother member s oi the mam circuit, said means being in elec' Forreturning thefirst-men'tioned bar to elevated position.

i 6. The combination with a main circuit, of gdHQlGCtIlC switch c-omprsing a contact r'nakijlng bar, a Contact device, means for normallyholding bar Linielevated position out of contact w1th said,contact-making device, means for releasing said bar and permitting it-todrop into contact with said device, electrical connections from said barto one member of the main circuit, electrical connections from saidmeans to the other member of the main circuit, said means being inelectrical connection with the bar when holding it in elevated position,and means for returning said bar to elevated position, said means comprising an electromagnet.

7. Thecombinati'on with amaincircuit, of

a mercury-cup connected therewith, an electrical instrument betweentheoriercurv-cup and the main circuit, a vertically-movable. bar adaptedto enter the 'mercurv-cup, an ,electrom'agnet, a bar connectedwvitlrsaidelectromagnet andatlaptecl to hold saitl first out oi the electromagnetwith the main circuit to energize it and withdraw the second bar fromcontact with the first .bar

8, The combination with a-main circuit. of

an electrical instrument connected therew'ith, a mercury-cupconnectedwith the electrical instrument, a movable bar adapted to enter themercurv-cup and permanently connected with the main circuit, anelectromagnet, a bar connected with the elcctromagnet and controlledthereby, said bar being atiapted to hold the first-named bar in elevatedposition out of the mercury-cup, and electrical connections between thesaid last-named bar, said electromagnet and the main circuit, forexciting the electromagnet and withdrawing the bar from its supportingposition.

9. The combination of a mercury-cup, a movable bar adapted to enter themercurycup, an electromagnet, a bar connected to the electromagnet andcontrolled thereby, said bar being adapted to hold said first-named barout of the mercur cup, and electrical connections between the last-namedbar and the electromagnetfor, exciting the latter and withdrawing thebar from its supporting posit-ion.

10. The combination of anelectrical circuit. a mercury-cu p, avertically-movable bar adapted to enter the cup connected with saidcircuit, an electromagnet, a bar connected with saidv electromagnct andadapted to en: gage the said first-named bar and hold 1t in elevatedposition out of the mercury-cup,

and means for energizing the electromagnet to withdraw the second-namedbar from contact with the first bar.

11. In an electric switch, the combination of a contact-making bar, aContact device,

. ing the first-mentioned bar in an elevated po means for normallyholding saidbar out of contact with said device, means for, releasingthe bar and permitting it to move into contact-with said device,--saidmeans being anelectrical connection with the bar when holding it out ofcontact, and means for returning said bar to a position out of Contactwith said device. A i

12. In an electric switch, the combination of avertically movable bar, amercury-cup located below the bar, a second bar forholdsition, means forretracting the second bar and permitting the first-named bar to dropinto the mercury-cup, said first-named bar being provided with an.insulation for preventing the passage of the current between it and thesecond bar when the first bar'isin the vmercury-cup, and means forreturning the firstmentioned bar to elevated position.

13. In an electric switch; the combination of a vertically-movableconducting-bar connected with a source of power, a mercury-cup locatedbelow the bar, a second bar for holding the first-mentioned bar inelevated position, and means for retracting the second bar andpermitting the first-mentioned bar to dropinto the mercury-cup.

14. In an electric switch, the combination of a contact-making bar; acontact device, means for normally holding said bar in eleraised. I

vated position'out 'of contact with said contact device, and meansfor-releasing said bar and permitting it to drop into contact with saiddevice, said means being in electrical connection witli' the barwhenholding it in elevated position, and said contact-making barbeingprovided with insulation for preventing electric connection between it'and the electrical instrument and bar, an electromagnet for supportingsaid bar, a circuit connected with the electromagn'et, means for makingand breaking said circuit,-an electromagnet for moving said bar toposition out of contact with the contact-making device, and means forcontrolling the admission of at current to the last-namedelectroniagnet.

LEWISv R. BROWN. FRED H. WENTWORTH. \Nitnesses J NO.- H. B TTER, A. K;DAV S.

